Windows PowerShell command on Get-command wish

Manual Pages for UNIX Operating System command usage for man wish

Tk Applications wish(1)

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NAME

wish - Simple windowing shell

SYNOPSIS

wish ?fileName arg arg ...?

OPTIONS

-colormap new Specifies that the window should have a

new private colormap instead of using the default colormap for the screen.

-display display Display (and screen) on which to display

window.

-geometry geometry Initial geometry to use for window. If

this option is specified, its value is stored in the geometry global variable of the application's Tcl interpreter.

-name name Use name as the title to be displayed in

the window, and as the name of the interpreter for send commands.

-sync Execute all X server commands synchro-

nously, so that errors are reported immediately. This will result in much slower execution, but it is useful for debugging.

-use id ||

-use option for toplevel widgets (i.e. |

it has a form like that returned by the | winfo id command).

-visual visual Specifies the visual to use for the win-

dow. Visual may have any of the forms

supported by the Tk_GetVisual procedure.

-- Pass all remaining arguments through to

the script's argv variable without interpreting them. This provides a mechanism for passing arguments such as

-name to a script instead of having wish

interpret them. Tk Last change: 8.0 1

Tk Applications wish(1)

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DESCRIPTION

Wish is a simple program consisting of the Tcl command

language, the Tk toolkit, and a main program that reads com-

mands from standard input or from a file. It creates a main

window and then processes Tcl commands. If wish is invoked

with no arguments, or with a first argument that starts with

``-'', then it reads Tcl commands interactively from stan-

dard input. It will continue processing commands until all

windows have been deleted or until end-of-file is reached on

standard input. If there exists a file .wishrc in the home

directory of the user, wish evaluates the file as a Tcl

script just before reading the first command from standard input.

If wish is invoked with an initial fileName argument, then

fileName is treated as the name of a script file. Wish will evaluate the script in fileName (which presumably creates a user interface), then it will respond to events until all windows have been deleted. Commands will not be read from

standard input. There is no automatic evaluation of .wishrc

when the name of a script file is presented on the wish com-

mand line, but the script file can always source it if desired. OPTIONS

Wish automatically processes all of the command-line options

described in the OPTIONS summary above. Any other command-

line arguments besides these are passed through to the application using the argc and argv variables described later.

APPLICATION NAME AND CLASS

The name of the application, which is used for purposes such

as send commands, is taken from the -name option, if it is

specified; otherwise it is taken from fileName, if it is

specified, or from the command name by which wish was

invoked. In the last two cases, if the name contains a ``/'' character, then only the characters after the last slash are used as the application name. The class of the application, which is used for purposes

such as specifying options with a RESOURCE_MANAGER property

or .Xdefaults file, is the same as its name except that the first letter is capitalized. Tk Last change: 8.0 2

Tk Applications wish(1)

VARIABLES Wish sets the following Tcl variables:

argc Contains a count of the number of arg argu-

ments (0 if none), not including the options described above. argv Contains a Tcl list whose elements are the

arg arguments that follow a -- option or

don't match any of the options described in OPTIONS above, in order, or an empty string if there are no such arguments.

argv0 Contains fileName if it was specified. Oth-

erwise, contains the name by which wish was

invoked.

geometry If the -geometry option is specified, wish

copies its value into this variable. If the variable still exists after fileName has been

evaluated, wish uses the value of the vari-

able in a wm geometry command to set the main window's geometry.

tcl_interactive

Contains 1 if wish is reading commands

interactively (fileName was not specified and

standard input is a terminal-like device), 0

otherwise. SCRIPT FILES If you create a Tcl script in a file whose first line is

#!/usr/local/bin/wish

then you can invoke the script file directly from your shell

if you mark it as executable. This assumes that wish has

been installed in the default location in /usr/local/bin; if it's installed somewhere else then you'll have to modify the above line to match. Many UNIX systems do not allow the

#! line to exceed about 30 characters in length, so be sure

that the wish executable can be accessed with a short file

name. An even better approach is to start your script files with the following three lines:

#!/bin/sh

# the next line restarts using wish \

exec wish "$0" "$@"

This approach has three advantages over the approach in the

previous paragraph. First, the location of the wish binary

doesn't have to be hard-wired into the script: it can be

anywhere in your shell search path. Second, it gets around Tk Last change: 8.0 3

Tk Applications wish(1)

the 30-character file name limit in the previous approach.

Third, this approach will work even if wish is itself a

shell script (this is done on some systems in order to han-

dle multiple architectures or operating systems: the wish

script selects one of several binaries to run). The three

lines cause both sh and wish to process the script, but the

exec is only executed by sh. sh processes the script first; it treats the second line as a comment and executes the

third line. The exec statement cause the shell to stop pro-

cessing and instead to start up wish to reprocess the entire

script. When wish starts up, it treats all three lines as

comments, since the backslash at the end of the second line causes the third line to be treated as part of the comment on the second line.

The end of a script file may be marked either by the physi- |

cal end of the medium, or by the character, '\032' |

('\u001a', control-Z). If this character is present in the |

file, the wish application will read text up to but not |

including the character. An application that requires this | character in the file may encode it as ``\032'', ``\x1a'', | or ``\u001a''; or may generate it by use of commands such as | format or binary. PROMPTS

When wish is invoked interactively it normally prompts for

each command with ``% ''. You can change the prompt by set-

ting the variables tcl_prompt1 and tcl_prompt2. If variable

tcl_prompt1 exists then it must consist of a Tcl script to

output a prompt; instead of outputting a prompt wish will

evaluate the script in tcl_prompt1. The variable

tcl_prompt2 is used in a similar way when a newline is typed

but the current command isn't yet complete; if tcl_prompt2

isn't set then no prompt is output for incomplete commands. KEYWORDS shell, toolkit

ATTRIBUTES

See attributes(5) for descriptions of the following attri-

butes: Tk Last change: 8.0 4

Tk Applications wish(1)

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| ATTRIBUTE TYPE | ATTRIBUTE VALUE|

|____________________|__________________|_

| Availability | runtime/tk-8 |

|____________________|__________________|_

| Interface Stability| Uncommitted |

|____________________|_________________|

NOTES Source for Tk is available on http://opensolaris.org. Tk Last change: 8.0 5